| 摘要 |
A skateboard is used for local transportation as well as sporting entertainment. These boards exceed sixty (60) inches in length and exceed three (3) inches in height from ground to bottom of board. A minimum height is achieved by securing risers ranging from three-quarters of (¾) an inches to ten (10) inches between the board and the front and rear trucks. Various protective barriers such as supports and braces, such as aluminum diamond plating and side rails are including on the boards in order to provide further stability.
|
